Improvement in water-filters



2 SheetsSheet 1.

P P EMORY Water-Filter.

No. 206,938. Patented Aug.13,1878.

NPETERS, PHOTOMTHOGRAFHE 2 Sheets-Sheet 2..

P. P. EMORY. Water-Filter.

Patented Aug. 13, 1878.

N.PETER$, PHOTD-LITHOGRAPHER, WASHINGTON. D C.

I UNITED STATES PATENT OFFICE. Y

I PASOHAL P. EMORY, OF SPRINGFIELD, MASSACHUSETTS.

IMPROVEMENT IN WATER-FILTERS.

Specification forming part of Letters Patent No. 206.938, dated August 12%, P 7 application tiled May 27, 1878.

To all whom it may concern: the series of clamps g is hung. E is an outer Be it known that I, PASCHAL P. EMORY, of circular case with vertical perforations t'. 0 is Springfield, county of Hampden, and State of an inner bottom surrounding perforated tube Massachusetts, have invented new and useful D, leaving a space, f, between it and the bot- Improvements in Water-Filters, which imtom of tub A. provements are fully set forth in the annexed Sponge-case, Fig.3, is composed of an inner 1 specification and in the accompanying drawwire-cloth tube, F, with vertical supports a, in gs. vertical perforated partitions 8, upper and low- The object of my invention is to provide for er rims t t, and a perforated flexible metallic paper-makers and other industries requiring a outside band, K, united by a hinged joint, '0, large quantity of clear water a filter which and pin r. will be effective for the purpose, presentalarge H is a water-space between tub A and case area of filtering medium, and have its parts so E. I, Fig. 3, is a sponge-packing between i arranged that the latter can, when choked with band K and wire-cloth tube F.

' foreign substances extracted from the water I construct my improved filters with a botwhich has passed through it, be easily removed tom inlet, B, Fig. 2, and with a side inlet, 0, and replaced by one that is clean without the Fig. 4. necessity of stopping the supply of water for When constructed as per Fig. 2 the tub is any considerable length of time. made with the inner bottom, 0, so as to form Referring to the drawings, which consist of the water-space f therein, from which the wav two sheets and fivefigures, Figure l is a plan ter flows up and around in the space H beview of my improved filter. Fig. 2 is a vertitween the tub A and the circular case E, and cal section of the same, with the top plate rethence through the sides of the sponge-case, moved. Fig. 3 is a "perspective view of my Fig. 3, into the center y of perforated tube D, improved sponge-case removed from'the. filter. and thence over the top of plate a, and escapes 'Fig. 4. is a vertical section of my filter,'with by spout b.

the sponge-case removed, and showing its When constructed with side inlet, 0, Fig. 4, construction when arranged with a side inlet. the inner bottom, 0, is dispensed with, the Fig. 5 is a rear view of a water-shield for the sponge-case, Fig. 3, is made long enough to side inlet. set down onto the bottom of tub A, and the Various filtering devices for the purposes water admitted at the side into space H finds above set forth have been made, in which its way through the filter, as above described. sponge and other similar or fibrous material The shieldd is secured in space H directly have been used through which to pass the waopposite inlet 0, to direct the ingomg stream ter; but their mode of construction has renof water circularly around in space H, and so dered their use very inconvenient, inasmuch prevent an undue deposit of sedlmentfrom as it has been difficult to clean them when too violent a contact of the water against the they became filled with sediment from the wasponge-case opposite said opening 0. ter, and they did not present such an area of Circular perforated case E is firmly secured filtering-surface through which to pass the to the bottom of the tub A, and to the side of water as was desirable without involving it, around the line of the height of spout b, and considerable ex ense in construction; but by has a flanged rim, x, around 1ts border. Sethe use of my improvements, as hereinafter cured to the under side of rim w are hinged set forth, the above inconveniences are obviscrew-clamps 9, Figs. 1 and 2. 'ated. a is a circular plate, fitted to the top of the rim A is the tub. I) is the spout; a the top a, havingabearing thereon, and on the top of plate; B, the bottom inlet; 0, the side inlet; rim w of the perforated inner tube, D. Hinged (I, the side-inlet shield. g are hinged clamps. screw-clamps, like those described as secured l) is an inner perforated tube fixed to the botto the under side of rim x, are also secured to tom of tub A, on the top rim of which one of the under side of rim or on tube D, and the latter is firmly fixed to the bottom of tub A. Plate a may be turned or ground to a watertight fit on the tops of rims .r and or, or a ket of suitable material maybe interposed between them, to make a tight joint when said plate is screwed down against them by screwclamps g.

Sponge-case, Fig. 3, is composed of the parts already designated; and the vertical perforated partitions s are firmly secured by their edges to the outer surface of wire-cloth tube F, to form divided sponge-cells, so as to secure greater compactness in packing the sponges therein, and they act as a support to the rims t and t, which are secured to their outer top and bottom corners. K is a flexible perforated metallic band, covering entirely the out-side surface of sponge-case, Fig. 3, and is secured around it by bringing its hinged ends '0 together and inserting pin r through the hinged parts, and it may be readily removed from the case by withdrawing pin r.

My filter is packed and arranged for use in the following manner, viz.: Band K is secured around the sponge-case, the latter being removed from tub A, as heretofore described, and sponges I are solidly packed into the divisions of the case between perforated partitions s, and the sides thereof formed by band K and wire-cloth tube F; and I take care to let the sponges bulge out above and below the rims of the sponge-case, so that when plate a is screwed down the sponges will be tightly pressed between the latter and the bottom of tub A, and so prevent the water from running freely between them. Thus packed, the sponge-case is placed in the tub A between circular case l1 and inner perforated tube 1). Plate a is then placed on top of rims 00 :0. Clamp-screws y are swung over so thcirscrews will bear vertically on the top of said plate, and in this position they are screwed firmly down against said plate, making a tight joint between it and rims x as, said plate also bearing tightly against the top surface of the sponge-packing. Thus arranged, the water may be let on, and it will be forced to pass through case E, perforated band K, sponges, wire-cloth tube F, and perforated tube D, to arrive inside of the latter, and flow up over plate a, and thence out through spout b. Coarse sediment in the water will be arrested on the outer surface of band K, and the fine dirt by sponges I. The wire-cloth tubcF acts as a strong barrier to hold the sponge-packing against the inward pressure of the water, and its openings are at the same time so ample that the water-pressure cannot force the sponge so compactly against it as to greatly impede the water-flow, as is often the case if a perforated metal, like band K, be used in the same position. Inner perforated tube D acts as an additional barrier against the passage of any foreign substance that may be brought along by the water.

The sponge-ease and the sponges packed therein, having become foul and full of sediment by the passage of much water through it, are changed in the following manner, viz: I keep in reserve: one extra sponge-case for each filter in use, ready packed ,with clean sponges, and ready to be inserted in tub A at a moments notice whenever a change may be required, and by this means I can, by unscrewing screw-clamps g and removing plate (I, remove the dirty case and its packing bodily from the tub, and insert the clean one in its place in a few moments, thus practically obviating any delay to the work by changing from a dirty to a clean filter. Of course, it is not indispensable that an extra spongeease be kept in reserve, as above stated; but it greatly facilitates the operation of changing, as set forth.

\Yhen the dirty case and packing are removed t'rom the tub A they are taken to a proper place, and pin r is withdrawn from band K, said band is removed from the case, and thus all the sponge-packing is freed and falls out of the sections of the case in which it was inclosed, and may be cleaned and repacked therein for further use. The removable band K greatly facilitates the work of cleaning my filter, for the sponges are packed inthe casedivisions very tightly, and it would require much time to remove them if the case was made with a fixed exterior wall instead of a removable band, K.

I do not confine myself to the combination of the removable sponge-case, Fig. I with the tub A and plate a, as constructed and shown; but I can make a superior filter, substantially upon my plan, to be attached to the water supply pipe of ahouse or other building, in the cellar thereof or other convenient place, by making an outer case, which would be represented by tub A if its bowl part above case E and its spout were cut oil, and by partially closing over the center opening y in plate a, leaving only a pipe-outlet thereon. In this manner my filter could be connected into the line of the water-supply pipe by inlet 13 or c and by said outlet in plate a, and when the filter became foul plate a could be removed by unscrewing clamps g and putting in a clean sponge-case, as above described. In this way I could furnish a filter for domestic and other purposes that could run a long time without changing and be very convenient to take care of.

What I claim as my invention is- 1. The combination, with tub A, perforated tube D, and plate a, of the removable spongecase, Fig. 3, substantially as and for the purpose set forth.

2. The sponge-case, Fig. 3, constructed with the removable perforated band K, substantially as and for the purpose set forth.

3. The combination, in the sponge case, Fig. 3, of wire-cloth tube F, perforated divisions s, and the flexible perforated removable band K, substantially as and for the purpose sponge-case, Fig. 3,111ay be, with said spongeset forth. case, inserted in and removed bodily from case 4. The combination of the ea-seE, perforated or tub A, substantially'as set forth.

tube D hinged screw-clamps g and plate a substaritially as and for the purpose set forth: PASOHAL O 5. In a water-filter, the sponge-case, Fig. 3, constructed and arranged substantially as set forth, whereby the filtering medium packed in Witnesses:

H. A. CHAPIN, WM. H. CHAPIN. 

